Shrub rose plant named ‘KORkupmul’

ABSTRACT

A new and distinct variety of rose with long lasting, novel yellow flowers, and attractive foliage with good disease resistance. It exhibits upright to bushy growth with abundant flowers. The new variety propagates well from cuttings and by grafting. This new and distinct variety has shown to be uniform and stable in the resulting generations from asexual propagation.

Latin name of genus and species: The botanical classification of the newrose plant is Rosa hybrida.

Variety denomination: The denomination of the new variety is‘KORkupmul’.

CROSS REFERENCES AND FEDERAL R&D STATEMENT

There are no cross referenced or related applications. This variety wasdeveloped without the aid of any research grant.

BACKGROUND OF THE INVENTION

The new variety of rose plant of the present invention originated from acontrolled crossing in a breeding program of two distinct parents duringthe summer of 1998. The crossing was between an unnamed seedling andanother unnamed seedling.

The resulting seeds were planted during the following winter. Theresulting seedlings were evaluated and exhibited distinctive physicaland biological characteristics. The new rose plant was selected as asingle plant from the seedling beds due to its superior characteristicsand asexually propagated for further evaluation. This new anddistinctive rose variety is named ‘KORkupmul’.

SUMMARY OF THE INVENTION

The new rose plant may be distinguished from its seed parent, an unnamedseedling, by the following combination of characteristics:

-   -   1. The open flower diameter of ‘KORkupmul’ is 90 mm. The open        flower size diameter of the unnamed seedling is 110 mm.    -   2. ‘KORkupmul’ has, on average, 80-90 petals per flower. The        unnamed seedling has, on average, 45 petals per flower.

The new rose plant may be distinguished from its pollen parent, anunnamed seedling, by the following combination of characteristics:

-   -   1. The common color of ‘KORkupmul’ is yellow. The common color        of the unnamed seedling is pink.    -   2. ‘KORkupmul’ exhibits bushy, erect growth. The unnamed        seedling exhibits arching growth.

The objective of the hybridization was to create a new and distinct roseplant with unique qualities, such as:

-   -   1. Uniform growth and flowering;    -   2. Abundant attractive, recurrent flowers;    -   3. Attractive and abundant foliage; and    -   3. Resistance to diseases encountered in landscapes and gardens.

This combination of qualities is not present in prior rose cultivarsknown to the inventor. These objectives have been substantially achievedand in that distinguish ‘KORgohowa’ from all other varieties of which Iam aware.

As part of a rose development program, Tim-Hermann Kordes germinatedseeds from the aforementioned hybridization and conducted evaluationsand observations on the resulting seedlings in a controlled environmentin Offenseth-Sparrieshoop, Germany. The resulting seedlings exhibiteddistinctive physical and biological characteristics. The new rose plant‘KORkupmul’ was selected in May, 1999 from the seedling beds to beasexually propagated for further evaluation. The first asexualpropagation of ‘KORkupmul’ was done by budding to seedling understocksin July, 1999 at the inventor's nursery in Offenseth-Sparrieshoop,Germany.

This initial and other subsequent propagations conducted in controlledenvironments demonstrate that ‘KORkupmul’ reproduces true to type insuccessive generations of asexual reproduction.

BRIEF DESCRIPTION OF THE DRAWING

The accompanying color drawing shows as true as is reasonably possibleto obtain in color photographs of this type, the typical characteristicsof the buds, flowers, leaves, and stems of ‘KORkupmul’.

DETAILED BOTANICAL DESCRIPTION

The following is a description of ‘KORkupmul’, as observed growing inOctober, 2010 in a nursery in Jackson County, Oreg. on plants of 5 yearsof age. Color references are made using The Royal Horticultural Society(London, England) Colour Chart, 2001 except where common terms of colorare used.

For a comparison, several physical characteristics of the rose variety‘KORquelda’, a rose variety from the same inventor described andillustrated in U.S. Plant Pat. No. 17,048 and issued on Aug. 22, 2006are compared to ‘KORkupmul’ in Chart 1.

CHART 1 Characteristic ‘KORkupmul’ ‘KORquelda’ Petal count 80-90 40Plant height 130 cm 100 cm Disease resistance High Moderate

-   Parents:    -   -   Seed parent.—An unnamed seedling.        -   Pollen parent.—An unnamed seedling.-   Classification:    -   -   Botanical classification.—Rosa hybrida, ‘KORkupmul’.        -   Commercial classification.—Shrub rose.

FLOWER AND FLOWER BUD

-   Blooming habit: Recurrent.-   Flower bud:    -   -   Size.—Upon opening, 30 mm in length from base of receptacle            to end of bud and 20 mm diameter at its widest point.        -   Bud form.—Short. Broad based.        -   Bud color.—As sepals first unfold, bud color is Yellow Group            1B. When ¼ open, the upper surface of petals is Yellow Group            1D, and the lower surface is Yellow Group 1C.        -   Sepals.—Size: Average 25-30 mm long×12 mm wide. Shape:            Sepals generally acuminate. Sepal apex is generally cirrose.            Weak foliaceous appendages on three of the five sepals. Base            is flat at union with receptacle. Quantity: Five. Margins:            With fine hairs and stipitate glands. Surface texture: Inner            side: Covered in fine hairs. Outer surface: Smooth.            Stipitate glands are present. Color: Upper surface Green            Group 138B with intonations of Gray-Red Group 182B. Lower            surface Yellow-Green Group 144A.-   Receptacle:    -   -   Surface.—Smooth.        -   Color.—Yellow-Green Group 144A.        -   Shape.—Funnel.        -   Size.—10 mm (h)×12 mm (w).-   Peduncle:    -   -   Surface.—Smooth.        -   Length.—45 mm average length.        -   Diameter.—4 mm average diameter.        -   Color.—Yellow-Green Group 144A.        -   Strength.—Moderate.        -   Borne.—Multiple flower buds per stem, generally 3 to 6.-   Flower bloom:    -   -   Fragrance.—Moderate.        -   Duration.—On the plant 11 days. Long lasting. As a cut            flower, 5 to 7 days. Senesced petals drop away cleanly.        -   Size.—Medium flowered garden rose. When open, the average            flower diameter is 90 mm and the average flower height is 45            mm.        -   Form.—Shape of flower when viewed from the side: Upon            opening, upper part: Convex. Upon opening, lower part: Flat.            Open flower, upper part: Flattened convex. Open flower,            lower part: Flat.-   Color:    -   -   Upon opening, petals.—Outermost petals: Outer Side: Yellow            Group 10D. Inner Side: Yellow Group 11D. Innermost petals:            Outer Side: Yellow Group 12A. Inner Side: Yellow Group 12B.        -   Upon opening, basal petal spots.—Basal petal spot, outermost            petals: Outer Side: Yellow Group 13A. Inner Side:            Yellow-Orange Group 14A. Basal petal spot, innermost petals:            Outer Side: Yellow Group 13B. Inner Side: Yellow-Orange            Group 14B.        -   After opening, petals.—Outermost petals: Outer Side: Yellow            Group 8D. Inner Side: Yellow Group 10D. Innermost petals:            Outer Side: Yellow Group 1C. Inner Side: Yellow Group 2C.        -   After opening, basal petal spots.—Basal petal spot,            outermost petals: Outer Side: Yellow Group 2B. Inner Side:            Yellow Group 8A. Basal petal spot, innermost petals: Outer            Side: Yellow Group 13B. Inner Side: Yellow Group 13C.            Variegations: None.-   General Tonality: On open flower Yellow Group 4A. No change in the    general tonality at the end of the 8th day. Afterwards, general    tonality is Yellow Group 4D.-   Petals:    -   -   Petal count.—Approximately 80-90 petals under normal            conditions.        -   Petal reflex.—Petals reflex slightly.        -   Petal edge.—Entire.        -   Petal shape.—Round. Apex shape is round. Shape of base is            rounded.        -   Petal size.—40 mm long; 35 mm wide.        -   Thickness.—Average.        -   Petal arrangement.—Generally in a regular pattern with            overlapping edges.-   Petaloids: Present.    -   -   Petaloid count.—Average of 8-12 per flower.        -   Petaloid edge.—Entire.        -   Petaloid texture.—Smooth.        -   Petaloid shape.—Deltoid.        -   Petaloid size.—Petaloids are 12 mm long and 8 mm wide.        -   Petaloid color.—Color of inner side is Yellow Group 1D.            Color of outer side is Yellow Group 1C.-   Reproductive organs:    -   -   Pistils.—Approximately 40-50 present. Stigmas: Location:            Slightly inferior in position to anthers. Color:            Yellow-Orange Group 20B. Styles: Length: 3 mm long. Color:            Yellow-Orange Group 20A. Intonations of Red Group 40B.        -   Stamens.—Approximately 65-75 on average and regularly            arranged. Anthers: Size: 1 mm long. Color: Yellow-Orange            Group 21B. Pollen: Generally present. Color: Yellow-Orange            Group 21B. Filaments: Color: Yellow Group 8C. Length: 8 mm.

THE PLANT

-   -   -   Plant growth.—Moderate vigor. Upright to bushy habit. When            grown as a budded nursery plant the average plant height is            130 cm and the average plant width is 70 cm.        -   Stems.—Stem color: Young wood: Yellow-Green Group 144A with            intonations of Gray-Red Group 182A. Older wood: Yellow Group            144A. Stem surface: Young wood: Smooth. Older wood: Smooth.        -   Prickles.—Present. Incidence: 8-12 per 10 cm of juvenile            stem. 5-7 per 10 cm of mature stem. Size: Average length:            12 mm. Color: Immature prickles: Red Group 182A. Mature            prickles: Gray-Brown Group 199D. Senescing to Gray-Brown            Group 199B. Shape: Concave. Anthocyanin: Color Gray-Red            Group 182A.        -   Leaves and leaflets.—Normally 5 leaflets on normal leaves in            middle of the stem. Venation pattern: Pyramidal net pattern.            Leaf size: 170 mm (1)×140 mm (w). Quantity: Abundant.            Texture: Upper side of leaflet: Glossy. Smooth. Leathery.            Under side of leaflet: Semi glossy. Smooth. Leathery. Color,            mature foliage: Upper Leaf Surface: Green Group 137A. Lower            Leaf Surface: Green Group 138B. Color, juvenile foliage:            Upper Leaf Surface: Green Group 137A. Lower Leaf Surface:            Green Group 138B. Anthocyanin intonation: Present. Location:            Intonations present on juvenile leaf margins. Color:            Gray-Purple Group 187B.        -   Stipules.—Size: 18 mm long. 8 mm between the tips of the            stipule. Main body of stipule 2-3 mm in width. Shape:            Longitudinally flanged. Stipule color: Yellow-Green Group            N144A. Anthocyanin: Gray-Red Group 182A. Presence of            stipitate glands: Present on margins. Margins: Ciliated with            stipitate glands.        -   Petiole.—Length: 25 mm. Diameter: 2-3 mm. Petiole color:            Upper side: Yellow-Green Group 144C. Lower side:            Yellow-Green Group 144B. Underneath: A few small prickles            underneath. Stipitate glands: Limited numbers of stipitate            glands on margins.        -   Petiole rachis.—Length: 45 mm. Diameter: 2 mm. Color:            Yellow-Green Group 144B. Anthocyanin present on juvenile            tissue. Color: Gray-Red Group 182B. Margins: Entire.            Prickles: A few small prickles underneath. Stipitate glands:            Limited numbers of stipitate glands on margins.        -   Leaflets.—Size: Average size of the terminal leaflet is 70            mm (1)×45 mm (w). Shape: Ovate. Base: Ovate. Apex: Acute.            Margins: Serrated. Texture: Leathery.

-   Hips/seed formation: Observed. Size: 20 mm (1)×20 mm (w). Color:    Yellow-Green Group 144B.

-   Winter hardiness: To date, the variety has been grown successfully    in Zone 5.

-   Disease resistance: Excellent resistance to Powdery mildew    (Sphaerotheca pannosa) and blackspot (Diplocarpon rosae) diseases    under normal growing conditions.

I claim:
 1. A new and distinct variety of rose plant, as described andillustrated herein.